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粘胶基碳纤维织物已广泛用作烧蚀和绝热复合材料。由于行情和利润不断下降,用连续粘胶纤维制得的碳纤维制品最终可能不易买到或限制供应。因此,围绕获得相应的PAN基碳布、测定其性能并制作布带缠绕酚醛树脂复合材料开展了研究。市场上买得到的PAN基碳布具有强度高和质量均匀等特性,但绝热性和化学纯度较差。特殊的PAN基碳布是在较低的(低于1350℃)热处理温度下获得的,并且应用于20°布带缠绕酚醛复合材料中。对这种复合材料的烧蚀、热物理、机械和化学性能的测定表明,所研制的复合材料可以代替粘胶基碳布/酚醛,但纤维与基体之间的粘结和纤维的纯度尚需进一步改善。
Viscose-based carbon fiber fabrics have been widely used as ablative and insulating composites. As the market and profits continue to decline, continuous viscose fiber made of carbon fiber products may eventually not easy to buy or limit the supply. Therefore, around to obtain the corresponding PAN-based carbon cloth, the determination of its performance and the production of cloth wrapped around phenolic resin composites were studied. The commercially available PAN-based carbon cloth has the characteristics of high strength and uniform quality, but has poor thermal insulation and chemical purity. Special PAN-based carbon cloths are obtained at lower (below 1350 ° C) heat-treatment temperatures and are used in 20 ° tape wrapped phenolic composites. The ablation, thermophysical, mechanical and chemical properties of the composites show that the composites can replace the viscose / phenolic cloth, but the bond between the fibers and the matrix and the purity of the fibers Further improvement.